Add integration tests

backend/reconcile/tests/test.rs

@@ -0,0 +1,47 @@
+mod example_document;
+use std::{fs, path::Path};
+
+use example_document::ExampleDocument;
+use reconcile::{CursorPosition, TextWithCursors, reconcile, reconcile_with_cursors};
+use serde::Deserialize;
+
+#[test]
+fn test_with_examples() {
+    let examples_dir = Path::new("test/examples");
+    let mut entries = fs::read_dir(examples_dir)
+        .expect("Failed to read examples directory")
+        .collect::<Vec<_>>();
+
+    entries.sort_by_key(|entry| {
+        let path = entry
+            .as_ref()
+            .expect("Failed to read directory entry")
+            .path();
+        path.file_name()
+            .and_then(|name| name.to_str())
+            .and_then(|name| name.split(".").next().unwrap().parse::<i32>().ok())
+            .unwrap_or_default()
+    });
+
+    for entry in entries {
+        let entry = entry.expect("Failed to read directory entry");
+        let path = entry.path();
+
+        if path.is_file() && path.extension().and_then(|ext| ext.to_str()) == Some("yml") {
+            let doc = ExampleDocument::from_yaml(&path);
+            println!("Testing with example from {}", path.display());
+
+            doc.assert_eq_without_cursors(&reconcile(
+                &doc.parent(),
+                &doc.left().text,
+                &doc.right().text,
+            ));
+
+            doc.assert_eq(reconcile_with_cursors(
+                &doc.parent(),
+                doc.left(),
+                doc.right(),
+            ));
+        }
+    }
+}